CN101851796B

CN101851796B - Method for processing wearable blended and modified polypropylene monofilaments for manufacturing fishing rope

Info

Publication number: CN101851796B
Application number: CN200910048624XA
Authority: CN
Inventors: 石建高
Original assignee: East China Sea Fishery Research Institute Chinese Academy of Fishery Sciences
Current assignee: East China Sea Fishery Research Institute Chinese Academy of Fishery Sciences
Priority date: 2009-03-31
Filing date: 2009-03-31
Publication date: 2012-05-30
Anticipated expiration: 2029-03-31
Also published as: CN101851796A

Abstract

The invention discloses a method for processing wearable blended and modified polypropylene monofilaments for manufacturing a fishing rope, relates to a method for processing polypropylene monofilaments for a fishing rope and aims to provides a method for processing the wearable blended and modified polypropylene monofilaments for manufacturing the fishing rope. A stirring machine, screw extruders, a drafting machine, a filament winding machine and a filament separating machine are adopted. The method is characterized by comprising the following steps of: mixing a sieved spinning-grade dry T30S type PP resin, a spinning-grade dry PA1010 resin, dry zinc stearate, white oil or a turpentine aid; uniformly mixing the materials, extruding the mixture twice by using a double-screw extruder and pelletizing to obtain poly-blended particles which contain the PP resin, the PA1010 resin and the zinc stearate; fusing and extruding the poly-blended particles by using a single-screw extruder, cooling and pre-drafting the fused and extruded primary filaments, thermally drafting the pre-drafted filaments twice, rapidly cooling the thermally-drafted filaments with high-pressure air current after the two times of thermal drafting and winding monofilaments by using the filament winding machine; and separating the monofilaments by using the filament separating machine to obtain the fishing wearable blended and modified PP monofilaments.

Description

Manufacturing fishing rope is used method for processing wearable blended and modified polypropylene monofilaments

Technical field

The present invention relates to aquatic products technical field fishing rope and use the polypropylene monofilament processing method.

Background technology

Fishing rope uses on agricultural sciences aquatic products technical field fishing gear, net cage and fishing boat extensively, and it makes the safety that is directly connected to fishing gear, net cage and fishing boat with the quality of matrix fiber material wear ability and strength character.Manufacturing fishing rope by functional classification, generally is divided into general fibre, abrasion resistant fibrous, ageing-resistant fiber and high-intensity fiber with matrix fiber; By forming classification, generally be divided into polyblend fiber, homofil, multicomponent fibre.Existing fishing is used the polypropylene cord making to use polypropylene fibre to adopt hot water to stretch with the PP resin as raw material and is made; There are defectives such as knot strength is little, elongation at break is on the low side, wear no resistance in they, the polypropylene cord that causes making with them fish for fishery engineering in be prone to take place the fishery accident.Fish for development with fishery engineering; Be badly in need of a large amount of fishing and use the wear-resisting polypropene fibrous material; Fish for fishery engineering to fishing rope and make performances such as ABRASION RESISTANCE with the PP monofilament, intensity and proposed high requirement; Therefore, manufacturing fishing rope has also just become distinct issues with wear-resisting PP monofilament processing method.

Summary of the invention

The technical issues that need to address of the present invention provide a kind of manufacturing fishing rope and use method for processing wearable blended and modified polypropylene monofilaments.

Technical scheme of the present invention adopts mixer, double screw extruder, single screw extrusion machine, twice drawing-off electrical heating drawing machine, receipts silk machine and divides a silk machine, PP resin, PA1010 resin, zinc stearate, auxiliary agent; The dry T30S type of processing back spinning level PP resin, the dry PA1010 resin of spinning level, dry zinc stearate, white oil or the mixing of turpentine oil auxiliary agent is characterized in that sieving; T30S type PP resin melt index is 2.1～3.9g/10min; The dry PA1010 resin content of spinning level is 2.95～3.05% of a PP weight resin; Zinc content 10.3～11.3% in the zinc stearate; The zinc stearate addition is 1.0～2.0% of a PP weight resin; White oil or turpentine oil additive dosage are 0.03～0.05% of PP weight resin; Above-mentioned compound stirs 20～45min with mixer and mixes thoroughly fully to material, and the compound after mixing thoroughly carries out extruding pelletization twice through double screw extruder, and compound just obtains to contain the blend pellet of PP resin, PA1010 resin and zinc stearate behind twice extruding pelletization; The blend pellet through the I district in single screw extrusion machine barrel electrical heating district, the temperature-control range in II district, III district, IV district is respectively 184～186 ℃, 264～267 ℃, 287～291 ℃, 276～281 ℃ and melt extrudes; The spun filament that melt extrudes obtains cooling and preliminary draft through 20～30 ℃ of cooling water tank water at low temperature and first drawing roller; The preliminary draft silk carries out twice hot drawing-off through 95.5～96.5 ℃ of high temperature first drawing-off water baths and second drawing roller, 96.5～98.0 ℃ of high temperature second drawing-off water baths and the 3rd drawing roller; After being controlled at 7.10～7.38 times, adopt the drawing-off general times that the preliminary draft silk carries out above-mentioned twice hot drawing-off through twice drawing-off electrical heating drawing machine high pressure draught to cool off fast, so that with the receipts silk machine rolling monofilament tow of torque motor; The monofilament tow divide thread tension be controlled at 20～30% times of the powerful value of single wire fracture through divide the silk machines divide thread for fishing with wearable blended and modified PP monofilament.

The present invention adds PA1010 resin, zinc stearate and the white oil auxiliary agent of specified quantitative in the PP resin concentrates; Through after the double screw extruder blend granulation and adopt special wire-drawing technology; Specific blending and modifying technology and drawing process are effectively combined; The fishing of producing suitable aquatic products field is with wearable blended and modified PP monofilament; Lot of test is proved the result and is shown; The manufacturing fishing rope of the present invention processing with the combination property of wearable blended and modified PP monofilament apparently higher than existing hot water stretching normal polypropylene monofilament; Improved ABRASION RESISTANCE, knot strength, fracture strength and the transparency of polypropylene filament, knot strength can reach 4.35cN/dtex and elongation at break is positioned at 10～15% interval, and its knot strength, fracture strength are superior to traditional hot water stretching PP monofilament and can existing respectively commercially available PE monofilament certified products index improve 20.0%, 6.7%; Not only more traditional fishing has the combination property advantage with polypropylene filament; And improved its downstream fishing rope The comprehensive performance greatly and applicability is used in fishing; Under the identical condition of friction condition, fishing improves more than 15.0% with the existing fishing of the abrasion resistance of wearable blended and modified PP monofilament with hot water stretching PP monofilament.With the line density of technical scheme of the present invention processing is that the fishing of 48tex is processed into rope with wearable blended and modified PP monofilament; Under the powerful identical condition of rope; Can make the raising of rope ABRASION RESISTANCE, diameter decline, weight saving, water resistance reduces and raw materials consumption reduces, obvious technical effects.

The specific embodiment

The manufacturing fishing rope that with the line density is 48tex uses wearable blended and modified PP monofilament processing method to be example, and the specific embodiment of the present invention is described.

Technical scheme of the present invention adopts mixer, PP resin, PA1010 resin, zinc stearate, auxiliary agent, double screw extruder, single screw extrusion machine, twice drawing-off electrical heating drawing machine, receipts silk machine and divides a silk machine; (Daqing petrochemical production, melt index are 2.1～3.9g/10min with the dry T30S type PP resin after the processing of sieving; If the PP resin makes moist, then should be placed in the baking oven 60～90 ℃ down about dry 60min or place can use after drying fully under the sunshine), the dry PA1010 resin (addition is 3.0% of the PP weight resin) of spinning level produced of BASF, [the zinc content of zinc stearate should satisfy 10.3～11.3% to the dry zinc stearate that Shanghai Yan'an Oil Chemical Plant produces; Addition is 2.9～3.1% of a PP weight resin; The zinc stearate molecular formula is (C ₁₇H ₃₅COO) ₂Zn; 117～125 ℃ of fusing points], spinning stirs about 20～30min to material with mixer with white oil or turpentine oil auxiliary agent (addition be PP weight resin 0.04%) etc. and mixes thoroughly fully; Compound after mixing thoroughly the screw diameter that emerging field rubber and plastics machine Co., Ltd produces through the sky and water is that the double screw extruder of 45mm carries out extruding pelletization twice, compound through twice extruding pelletization after just acquisition contain the blend pellet of PP resin, PA1010 resin and zinc stearate; (screw slenderness ratio is 25: 1 to the blend pellet through single screw extrusion machine; Filter thickness 10mm; Hole diameter 1.8mm on the filter; Screen pack adopts 120 purpose copper mesh, 80 each one deck of order wire netting) under specified temp (temperature-control range in the I district in extruder barrel electrical heating district, II district, III district, IV district is respectively 185 ℃, 265 ℃, 289 ℃, 278 ℃), melt extrude; The spun filament that melt extrudes obtains cooling off and preliminary draft through 20～30 ℃ of cooling water tank water at low temperature (spun filament cooling distance be controlled in 0.78～1.02m, spinnerets and the cooling water tank vertical range between the water surface be controlled at 2～7cm, cooling water tank are of a size of 0.60m * 0.50m * 0.60m, cooling water tank is furnished with overflow pipe and water inlet pipe) and first drawing roller; The preliminary draft silk carries out twice hot drawing-off through 96 ℃ of high temperature first drawing-off water baths and second drawing roller, 97 ℃ of high temperature second drawing-off water baths and the 3rd drawing roller, and the preliminary draft silk carries out above-mentioned twice hot drawing-off through twice drawing-off electrical heating drawing machine, and (the 1st hot drawing-off is controlled at 5.870 times, the 2nd time hot drawing-off and is controlled at 1.240 times; The drawing-off general times of twice hot drawing-off is controlled at 7.27 times; When the 3rd drawing roller is received silk on drawing roller around 8 roads) back adopts high pressure (Pressure control is at 6kg/cm ²About) the quick cooled filament tow of air-flow, again so that with the continuous rolling monofilament of the receipts silk machine tow of torque motor; The monofilament tow specific minute thread tension (divide thread tension be controlled at the powerful value of single wire fracture about 25%) under through the FS350 type divide the silk machine divide thread for fishing with wearable blended and modified PP monofilament.

With the line density of technical scheme of the present invention processing is that the fishing of 48tex is processed into rope with wearable blended and modified PP monofilament; Under the powerful identical condition of rope; Can make the raising of fishing rope ABRASION RESISTANCE, diameter decline, weight saving, water resistance reduces and raw materials consumption reduces; Improved monofilament and downstream fishing rope The comprehensive performance thereof and fishing and used applicability, technique effect is quite obvious.

Claims

1. manufacturing fishing rope is used method for processing wearable blended and modified polypropylene monofilaments; Adopt mixer, double screw extruder, single screw extrusion machine, twice drawing-off electrical heating drawing machine, receipts silk machine and divide a silk machine, PP resin, PA1010 resin, zinc stearate, auxiliary agent; The dry PP resin of processing back spinning level, the dry PA1010 resin of spinning level, dry zinc stearate, white oil or the mixing of turpentine oil auxiliary agent is characterized in that sieving; PP resin melt index is 2.1～3.9g/10min; The dry PA1010 resin content of spinning level is 2.95～3.05% of a PP weight resin; Zinc content 10.3～11.3% in the zinc stearate; The zinc stearate addition is 1.0～2.0% of a PP weight resin, and white oil or turpentine oil additive dosage are 0.03～0.05% of PP weight resin, and above-mentioned compound stirs 20～45min with mixer and extremely expects to mix thoroughly fully; Compound after mixing thoroughly carries out extruding pelletization twice through double screw extruder, and compound just obtains to contain the blend pellet of PP resin, PA1010 resin and zinc stearate behind twice extruding pelletization; The blend pellet through the I district in single screw extrusion machine barrel electrical heating district, the temperature-control range in II district, III district, IV district is respectively 184～186 ℃, 264～267 ℃, 287～291 ℃, 276～281 ℃ and melt extrudes; The spun filament that melt extrudes obtains cooling and preliminary draft through 20～30 ℃ of cooling water tank water at low temperature and first drawing roller; The preliminary draft silk carries out twice hot drawing-off through 95.5～96.5 ℃ of high temperature first drawing-off water baths and second drawing roller, 96.5～98.0 ℃ of high temperature second drawing-off water baths and the 3rd drawing roller, adopts 6kg/cm after the drawing-off general times that the preliminary draft silk carries out above-mentioned twice hot drawing-off through twice drawing-off electrical heating drawing machine is controlled at 7.10～7.38 times ²High pressure draught cools off fast, so that with the receipts silk machine rolling monofilament tow of torque motor; The monofilament tow divide thread tension be controlled at 20～30% times of the powerful value of single wire fracture through divide the silk machines divide thread for fishing with wearable blended and modified PP monofilament.